Improvement in plows



T.v PARKER.

. Flows, A l 510,157,539, y Patentednec.,1s74.

ATTORNEYS UNITED STATES PATENT OFFICE.

THOMAS PARKER, OF MENOMONEE, WISCONSIN, ASSIGNOR OF ONE-HALF HIS RIGHTTO JAMES DOWNING, OF SAME PLAGE.

IMPROVEMENT IN PLOWS.

Specification forming part of Letters Patent No.157,539, dated December8, 1874; application led October 24, 1874.

To all whom it may concern:

Be it known that I, THOMAS PARKER, of Menomonee, in the county of Dunnand State of Wisconsin, have invented a new and valu able Improvement inFlows; and I do hereby declare that the following is a full, clear, andexact description of the construction and operation' of the same,reference being had to the annexed drawings making a part of thisspecification, and to the letters and ligures of reference markedthereon.

Figure l of the drawing is a representation of a side view of my plow.Fig. 2 is a plan view of the same, and Fig. 3 is also a side vlew.

This invention has relation to double plows which are so constructed asto ail'ord a right or a left hand plow at pleasure, and it consists inpivoting double reversible plows to a horizontal depressed .portion ofthe beam in such manner that when the plows are released from certaincatches, hereinafter explained, they are free to swivel laterally7 andcan be easily reversed. as will be fully understood from the followingdescription; and also in a novel construction of catches for holding theplows rlnly in a Working position, as will be hereinafter explained.

In the annexed drawings, A designates the plow-beam, and c a straightdepressed portion thereof, about which the plows are allowed to swivelwhen they are released from catches, hereinafter explained. The rear end.Of the straight portion c is turned up and inclined backward, asindicated in Figs. l and 3 by the letter c', and to this upturnedportion a two handles, B B, are rigidly secured, to which a cross-bar.b, is secured. The rear depressed portion of the beam A and the upperportion of this beam are tied together by means of an inclined rod, C,which braces and stiftens the beam, so that it will not spring whensubjected to considerable strain. D D designate two mold-boards,whichare secured closely together, and which have secured to them shares c c.These boards D D are of the usual well-known shape, and they are rigidlysecured to two land-side bars, E, by means of braces g h h. The twoland-side bars E E are rigidlysecured together by means of parallel barsd d and short diagonal braces c e, thereby forming two united plows,either one oi' which can be used at pleasure. In front the plows areprovided with colters k, which may be formed of one piece, and whichshould be removable. rIhe connecting-bars d el are applied to reducedcylindrical portions of the bar a, by means of straps f f, which formswivelingconnections of the two plows with the said bar c. At the frontend of the upper plow, and pivoted to the curved portion of the beam A,is a loop, n, to which is secured a loaded arm h, and to the front endof which a rod, J, is pivoted. The rod J extends back, and is pivoted toan angular lever, m, which vibrates on the cross-bar b of the handles BB.. One arln of the angular lever m is connected, by a rod, p, to oneend of a vibrating loop, r, which is pivoted to the handles B, andconstructed with a notch in its front end adapted to receive either oneof the rear ends of the landside bars E, as shown in Figs. l and 3. Theloop n receives the point of the upper plow, and the notch in loop rreceives the rear end of the upper plow, thus holding the workingv plowrigidly in proper position.

The plownlan, standing at the rear of the plow, can operate bothlatching-loops.

What I claim as new, and desire to secure by Letters Patent, is

l. In a reversible plow, the curved beam A,

having the horizontal rear extension a', iu combination with the twoplows, revolving on the horizontal part a., the upper plow reaching tothe curve of said beam, and secured by the loops n r, substantially asspecified.

2. The catching-loops n r, loaded arm u', rods J and p, and angularlever m, in combination with the two reversible plows, as described.

In testimony that I claim the above I have hereunto subscribed my nainein the presence of two witnesses.

THOMAS PARKER.

Witnesses GEO. H. BARwIsE, W. H. ALLEN.

